is now listed as a separate system.
1. Jim Walker. The Yellow Cars of Los Angeles: A Roster of Streetcars of Los Angeles Railway and Successors from the 1890s to 1963
(Interurbans Special #43). Published by Pentrex Media Group, 1977.
2. Alan Lind. From Horsecars to Streamliners: An Illustrated History of the St. Louis Car Company
. Park Forest, IL: Transport History Press, 1978.
3. Harold E. Cox. The Birney Car
. Forty Fort, PA: Author, 1966.
a personal site of Dr. Harold E. Cox with author’s books and car builders’ order lists: http://streetcars.telcen.com/